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Msi_poll procedure, Dma_set_msi procedure – Altera Arria V Avalon-ST User Manual

Page 225

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Location

altpcietb_bfm_driver_rp.v

Arguments

rc_addr

Address of the BFM shared memory that is being polled.

rc_data

Expected data value of the that is being polled.

r

c_mask

Mask that is logically

AND

ed with the shared memory data

before it is compared with

rc_data

.

msi_poll Procedure

The

msi_poll

procedure tracks MSI completion from the Endpoint.

Location

altpcietb_bfm_driver_rp.v

Syntax

msi_poll(max_number_of_msi,msi_address,msi_expected_dmawr,msi_expected_

dmard,dma_write,dma_read)

Arguments

max_number_of_msi

Specifies the number of MSI interrupts to wait for.

msi_address

The shared memory location to which the MSI messages will

be written.

msi_expected_dmawr

When

dma_write

is set, this specifies the expected MSI data

value for the write DMA interrupts which is set by the

dma_

set_msi

procedure.

msi_expected_dmard

When the

dma_read

is set, this specifies the expected MSI data

value for the read DMA interrupts which is set by the

dma_

set_msi

procedure.

Dma_write

When set, poll for MSI from the DMA write module.

Dma_read

When set, poll for MSI from the DMA read module.

dma_set_msi Procedure

The

dma_set_msi

procedure sets PCI Express native MSI for the DMA read or the DMA write.

Location

altpcietb_bfm_driver_rp.v

Syntax

dma_set_msi(bar_table, bar_num, bus_num, dev_num, fun_num, direction, msi_

address, msi_data, msi_number, msi_traffic_class, multi_message_enable,

msi_expected)

2014.12.15

msi_poll Procedure

16-55

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